select Date,TotalAllowance 
from Calculation 
where EmployeeId=1
  and convert(varchar(10),Date,111) between '2011/02/25' and '2011/02/27'

Select 
    * 
from 
    Calculation 
where 
    EmployeeId=1 and Date between #2011/02/25# and #2011/02/27#;

select Date,TotalAllowance 
from Calculation 
where EmployeeId=1
  and convert(varchar(10),Date,111) between '2011/02/25' and '2011/02/27'

两件事:

使用引号 确保包括最后一天(结束于24) 选择日期，总津贴 从计算 EmployeeId = 1 and "2011/02/25" <= Date and Date <= "2011/02/27"

如果Date为DateTime。

我倾向于以这种方式进行范围检查，因为它清楚地显示了下限和上限。请记住，日期格式在不同的文化中有很大的不同。所以你可能要确保它被解释为一个日期。使用DATE_FORMAT(日期，'Y/m/d')。

(提示:使用STR_TO_DATE和DATE_FORMAT来切换范例。)

例子:工作和非工作。

select * from tblUser Where    
convert(varchar(10),CreatedDate,111) between '2015/04/01' and '2016/04/01' //--**Working**

OR

select * from tblUser Where
(CAST(CreatedDate AS DATETIME) between CAST('2015/04/01' AS DATETIME) And CAST('2016/4/30'AS DATETIME)) //--**Working**

OR

select * from tblUser Where
(YEAR(CreatedDate) between YEAR('2015/04/01') And YEAR('2016/4/30')) 
//--**Working**

下面的AND是无效的:

select * from tblUser Where
Convert(Varchar(10),CreatedDate,111) >=  Convert(Varchar(10),'01-01-2015',111) and  Convert(Varchar(10),CreatedDate,111) <= Convert(Varchar(10),'31-12-2015',111) //--**Not Working**


select * from tblUser Where
(Convert(Varchar(10),CreatedDate,111) between Convert(Varchar(10),'01-01-2015',111) And Convert(Varchar(10),'31-12-2015',111)) //--**Not Working**

试试这个:

select Date,TotalAllowance from Calculation where EmployeeId=1
             and [Date] between '2011/02/25' and '2011/02/27'

日期值需要作为字符串输入。

为了确保您的SQL Server 2008及更高版本的查询能够适应未来，Date应该被转义，因为在以后的版本中它是一个保留字。

请记住，没有时间的日期将午夜作为默认值，因此这里可能没有正确的值。